The answer is escucha.
The subject here is Marta, and we have to conjugate the verb to match the subject, which is a 'she' and you just add 'a' to the stem.
Answer:
1) Tú y yo recogimos los papeles del suelo.
2) Uds. durmieron mucho.
3) La profesora repitió la lección.
Explanation:
A cambio is to exchange in spanish
The Outlaw Race if you need help just do another answer
